---
title: "Delete your stored BYOK LLM key"
method: DELETE
path: "/v1/llm/keys/{provider}"
tags: ["keys"]
---

# Delete your stored BYOK LLM key

`DELETE /v1/llm/keys/{provider}`

## Request

- Base URL: `https://coasty.ai`
- URL: `https://coasty.ai/v1/llm/keys/{provider}`
- Auth: one of:
  - API key in header `X-API-Key`
  - HTTP bearer
- TypeScript: <https://skmtc.dev/coasty/apis/coasty-public-api/docs/v1/llm/keys/:provider/delete.ts> (a function with typed inputs; its response is checked against the schema)

Scope: `llm_keys`. Requires a live API key; sandbox keys cannot modify the production credential store. Deletes the stored key for the provider — 404 LLM_KEY_NOT_FOUND when none exists. Schedules that opted into this provider then fail loudly at fire time with LLM_KEY_NOT_CONFIGURED; they never silently run on Coasty's platform keys. Deletion stops future stored-key lookups but does not revoke an encrypted snapshot already held by an active run or workflow, or the fixed create-time key held in memory by an active session. Cancel active runs/workflows and DELETE /v1/sessions/{session_id} for active sessions to stop further calls; terminal run transition scrubs ciphertext. Provider-side revocation stops the key upstream.

A key-store outage returns 503 DB_UNAVAILABLE with Retry-After, not a bare 500. The same distinction applies when a request resolves a stored BYOK key: a store outage is a retryable 503, and 422 LLM_KEY_INVALID is reserved for a key the provider actually rejected.

## Response `200`

Deleted.

- DeleteLlmKeyResponse
  - `deleted` true, required

## Other responses

- `400`: Invalid request body or parameters.
- `401`: Missing, invalid, or revoked API key. Pass `X-API-Key: sk-coasty-live-...` (or test).
- `403`: API key lacks the required scope or tier-feature is unavailable on the caller's plan.
- `404`: Resource not found in this key's namespace.
- `409`: The resource state conflicts with this operation.
- `413`: The request body exceeds the endpoint limit.
- `422`: The JSON shape is valid but one or more values violate the endpoint contract.
- `429`: Rate or concurrency limit exceeded.
- `500`: Unexpected server error. Retry with exponential backoff.
- `502`: An upstream dependency returned an invalid response.
- `503`: A required service is temporarily unavailable.
- `504`: An upstream dependency timed out.

---

[API](https://skmtc.dev/coasty/apis/coasty-public-api.md) - [All operations](https://skmtc.dev/coasty/apis/coasty-public-api/llms.txt) - [OpenAPI document](https://skmtc.dev/coasty/apis/coasty-public-api/revisions/f50d93b0d8a1?raw)